The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-013-4177, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Positronic Industries Inc Div Amphenol Military Aerospace Operations. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-013-4177 |
| Primary Part Number | 12H4-06-X16C |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Positronic Industries Inc Div Amphenol Military Aerospace Operations |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 4.000 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 4.000 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12H4-06-X16C PRIMARY | Positronic Industries Inc Div Amphenol Military Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| HJ10 | 5/9 Secondary reference Designatronics Incorporated Div Sterling Instruments Div |
| 4M95C06-8 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5340-01-013-4177 is a Standoff,threaded,spacing, manufactured by Positronic Industries Inc Div Amphenol Military Aerospace Operations, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-013-4177 has 1 manufacturer part number on file: 12H4-06-X16C (Positronic Industries Inc Div Amphenol Military Aerospace Operations).
Key specifications for 12H4-06-X16C: Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 1.000 INCHES NOMINAL IN; Thread Length: 4.000 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Style Designator: INTERNALLY THREADED FULL LENGTH. 12 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.